All these years after the Jetsons went off the air, we’re right on the verge of having access to robots that drive and fly us around while we sit and play Scrabble on our phones.

Even if somebody can give you a reasonable-sounding explanation [for his or her actions], it probably is incomplete, and the same could very well be true for AI. It might just be part of the nature of intelligence that only part of it is exposed to rational explanation. Some of it is just instinctual, or subconscious, or inscrutable.